#4B64BB#4B64BB

#4B64BB is a mid, vivid blue. Relative luminance 0.142; OKLCH L 52.8% C 0.139 H 269.2°. Best body text is #FFFFFF at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#4B64BB
RGB	rgb(75, 100, 187)
HSL	hsl(227, 45%, 51%)
HSV	hsv(227, 60%, 73%)
CMYK	cmyk(59.9%, 46.5%, 0%, 26.7%)
CIE-LAB	lab(44.51, 17.67, -48.80)
CIE-LCH	lch(44.51, 51.90, 289.90°)
OKLab	oklab(52.81% -0.002 -0.1393)
OKLCH	oklch(52.81% 0.139 269.2)
XYZ	xyz(16.4254, 14.1967, 48.8787)
Luminance	0.1420 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B64BB #BBA24B

analogous

#4B9CBB #4B64BB #6A4BBB

triadic

#4B64BB #BB4B64 #64BB4B

tetradic

#4B64BB #BB4B9C #BBA24B #4BBB6A

square

#4B64BB #BB4B9C #BBA24B #4BBB6A

split-complementary

#4B64BB #BB6A4B #9CBB4B

monochromatic

#263465 #374B92 #4B64BB #778ACC #A4B1DD

Accessibility & contrast

On white

5.47

#4B64BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#4B64BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B64BB

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B64BB	#FFFFFF	#000000	##FFFFFF
##4B64BB	1.00	5.47	3.84	5.47
#FFFFFF	5.47	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B6FBE

Deuteranopia (green-blind)

#2965B9

Tritanopia (blue-blind)

#007886

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #4b64bb;
/* rgb */ color: rgb(75, 100, 187);
/* oklch */ color: oklch(52.8% 0.139 269.2);

Tailwind

colors: {
  custom: {
    50: '#878fd0',
    500: '#4b64bb',
    950: '#000000',
  },
}

SCSS

$custom: #4b64bb;
$custom-light: #878fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#4b64bb",
  "rgb": {
    "r": 75,
    "g": 100,
    "b": 187
  },
  "hsl": {
    "h": 226.607,
    "s": 45.161,
    "l": 51.373
  },
  "oklch": {
    "l": 0.52809,
    "c": 0.13933,
    "h": 269.2
  },
  "luminance": 0.14198
}

Semantic roles & 50–950 ramp

primary

#4B64BB

secondary

#CABF98

accent

#B853D5

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4B64BB

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →